Not to dismiss this, but when I was working on a problem on Windows recently my LLM (6.1 Sol / oh-my-pi) ended up doing the same thing, although it used Qemu and snapshots to accomplish that.
Eventually it got to a point it could iterate very quickly and was really only constrained by total system RAM which meant a dozen at most copies could be running simultaneously.
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Same. It's quite remarkable. Two other things Claude and I have done. I have a spare workstation running proxmox in my garage. Claude can now create, snapshot, delete, extend, start, and restart vms. It's been great. I also have skills that allow it to spin up spot instances when I need to test things that rely on hardware I don't have like certain Nvidia gpus or 100gb networking. What a time to be alive.